Collimator and Radionuclide Combinations for CT Attenuation Correction Evaluation
| Radionuclide | Energy | Collimator |
|---|---|---|
| 201Tl | 70 keV | Low-energy, high-resolution |
| 99mTc | 140 keV | Low-energy, high-resolution |
| 111In | 172 and 247 keV | Medium energy |
| 131I | 364 keV | Medium energy |
| 131I | 364 keV | High energy |
| 18F | 511 keV | High energy |